It was just a plastic guide block that was adjusted outwards to take up the chain slack. The colour on that refurbished Model 45 is a metallic version of Scott Bonnar's Hammertone Apple Green which was used from around 1977 until production near ended in Adelaide. There was another darker oddball green that was used right at the end of the Thebarton factories life but there weren't that many Reel mowers made anymore like they used to be.
Cheers, BB.
Check out the photo below as it shows how the Original Series 2 Tensioner looks.
I live a 24 Hour lifestyle, but every now and again I seem to fall asleep, well at least that's what my wife tells me.
